Wicipedia

Delwedd:1937 1952 Prof Otto Bayer Polyurethan.jpg

Maint llawn ‎((1,434 × 2,362 picsel, maint y ffeil: 808 KB, ffurf MIME: image/jpeg))

Daw'r ffeil hon o Comin Wikimedia a gellir ei defnyddio gan brosiectau eraill. Dangosir isod y disgrifiad sydd ar dudalen ddisgrifio'r ffeil yno.

Crynodeb

Disgrifiad
English: Prof. Otto Bayer in 1952 demonstrating his creation (from 1937), the polyurethane,.
Português: Prof. Otto Bayer em 1952, demonstrando sua criação (de 1937), o poliuretano.
Dyddiad
Ffynhonnell http://press.bayer.com/baynews/baynews.nsf/id/Historical_Photos_e?opendocument
Awdur Bayer AG

Trwyddedu

Public domain

This work is in the public domain in its country of origin and other countries and areas where the copyright term is the author's life plus 70 years or fewer.

You must also include a United States public domain tag to indicate why this work is in the public domain in the United States. Note that a few countries have copyright terms longer than 70 years: Mexico has 100 years, Jamaica has 95 years, Colombia has 80 years, and Guatemala and Samoa have 75 years. This image may not be in the public domain in these countries, which moreover do not implement the rule of the shorter term. Honduras has a general copyright term of 75 years, but it does implement the rule of the shorter term. Copyright may extend on works created by French who died for France in World War II (more information), Russians who served in the Eastern Front of World War II (known as the Great Patriotic War in Russia) and posthumously rehabilitated victims of Soviet repressions (more information).

Canfyddwyd bod y ffeil yn rhydd o gyfyngiadau yn ôl cyfraith hawlfraint, gan gynnwys pob hawl perthynol a chyfagos.

Captions

Add a one-line explanation of what this file represents

Items portrayed in this file

yn portreadu

media type Saesneg

image/jpeg

checksum Saesneg

a6f4bba7466e5d92bdd4b88617c7a2badd5aaffd

dull penderfynu: SHA-1 Saesneg

data size Saesneg

827,115 byte

uchder

2,362 pixel

lled

1,434 pixel

Hanes y ffeil

Cliciwch ar ddyddiad / amser i weld y ffeil fel ag yr oedd bryd hynny.

Dyddiad / AmserBawdlunHyd a lledDefnyddiwrSylw
cyfredol13:05, 30 Hydref 2014Bawdlun y fersiwn am 13:05, 30 Hydref 20141,434 × 2,362 (808 KB)Maiolino{{Information |Description ={{en|1=Prof. Otto Bayer in 1952 demonstrating his creation (from 1937), the polyurethane,.}} {{pt|1=Prof. Otto Bayer em 1952, demonstrando sua criação (de 1937), o poliuretano.}} |Source =http://press.bayer.com/...

Mae'r 1 tudalennau a ddefnyddir isod yn cysylltu i'r ddelwedd hon:

Defnydd cydwici y ffeil

Mae'r wicis eraill hyn yn defnyddio'r ffeil hon:

Metadata

Mae'r ffeil hon yn cynnwys gwybodaeth ychwanegol, sydd mwy na thebyg wedi dod o'r camera digidol neu'r sganiwr a ddefnyddiwyd i greu'r ffeil neu ei digido. Os yw'r ffeil wedi ei cael ei newid ers ei chreu efallai nad yw'r manylion hyn yn dal i fod yn gywir.

Wedi dod o "https://cy.wikipedia.org/wiki/Delwedd:1937_1952_Prof_Otto_Bayer_Polyurethan.jpg"