File:NDL986452 無線電信.pdf

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Original file (6,300 × 4,366 pixels, file size: 22.74 MB, MIME type: application/pdf, 38 pages)

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[edit]
無線電信   (Wikidata search (Cirrus search) Wikidata query (SPARQL)  Create new Wikidata item based on this file)
Author
逓信省
image of artwork listed in title parameter on this page
Title
無線電信
Publisher
逓信省
Language jpn
Publication date

1920

大正9
Place of publication JP
Source

doi:10.11501/986452

institution QS:P195,Q477675
Creator
InfoField
逓信省 編
Publication Place
InfoField
[東京]
Subject: NDC
InfoField
694
Extent
InfoField
42p ; 23cm
Material Type
InfoField
Book
Source Identifier: JPNO
InfoField
43054905
Date Digitized: W3CDTF
InfoField
2007-03-30
Audience
InfoField
一般
Title Transcription
InfoField
ムセン デンシン
Publisher Transcription
InfoField
テイシンショウ
Source Identifier: NDLBibID
InfoField
000000602166
Call Number
InfoField
344-357ロ
Creator: NDLNAId
InfoField
00311706
Contents
InfoField
目次

無線電信

其一 無線電信の沿革及發達の概況/1p

其二 現況/13p

其三 無線電信の特殊取扱/21p

其四 無線電信に關する主なる特別施設/23p

其五 使用電力及電波長/27p

其六 確實通信距離と感應距離/29p

其七 無線電信局の創設費/31p

其八 無線電信現業從事員/33p

其九 外國との比較/35p

無線電話

其十 無線電話發達の概況/39p

Licensing

[edit]
This image is in the public domain because it is a mere mechanical scan or photocopy of a public domain original, or – from the available evidence – is so similar to such a scan or photocopy that no copyright protection can be expected to arise. The original itself is in the public domain for the following reason:
Public domain
According to Japanese Copyright Law (June 1, 2018 grant) the copyright on this work has expired and is as such public domain. According to articles 51, 52, 53 and 57 of the copyright laws of Japan, under the jurisdiction of the Government of Japan works enter the public domain 50 years after the death of the creator (there being multiple creators, the creator who dies last) or 50 years after publication for anonymous or pseudonymous authors or for works whose copyright holder is an organization.

Note: The enforcement of the revised Copyright Act on December 30, 2018 extended the copyright term of works whose copyright was valid on that day to 70 years. Do not use this template for works of the copyright holders who died after 1967.

Use {{PD-Japan-oldphoto}} for photos published before December 31, 1956, and {{PD-Japan-film}} for films produced prior to 1953. Public domain works must be out of copyright in both the United States and in the source country of the work in order to be hosted on the Commons. The file must have an additional copyright tag indicating the copyright status in the United States. See also Copyright rules by territory.

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You must also include a United States public domain tag to indicate why this work is in the public domain in the United States.

This tag is designed for use where there may be a need to assert that any enhancements (eg brightness, contrast, colour-matching, sharpening) are in themselves insufficiently creative to generate a new copyright. It can be used where it is unknown whether any enhancements have been made, as well as when the enhancements are clear but insufficient. For known raw unenhanced scans you can use an appropriate {{PD-old}} tag instead. For usage, see Commons:When to use the PD-scan tag.


Note: This tag applies to scans and photocopies only. For photographs of public domain originals taken from afar, {{PD-Art}} may be applicable. See Commons:When to use the PD-Art tag.

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current12:22, 26 November 2023Thumbnail for version as of 12:22, 26 November 20236,300 × 4,366, 38 pages (22.74 MB)Wmr-bot (talk | contribs)上載《986452.pdf》

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