Vintage Gruen: 1930s » Green black velvet

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Wed, 10 March 2021 11:55

Jenneke
Messages: 2053
Registered: May 2013
Location: Netherlands

Gruen Authority

Or 1874 could be somewhat true. The year the first Gruen watch was made with a (prototype) safety pinion. A fred gruen watch. Very Happy

Not sure how it works. Draw first, patent it and make it. Or draw, make a prototype, test it and then apply for a patent.

You can only waste time if you forget to enjoy it - Loesje

		Green black velvet - long version By: Jenneke on Mon, 08 March 2021 16:42
		Re: Green black velvet - long version By: Jenneke on Mon, 08 March 2021 16:44
		Re: Green black velvet - long version By: thesnark17 on Tue, 09 March 2021 02:52
		Re: Green black velvet - long version By: Ephemerald on Tue, 09 March 2021 17:00
		Re: Green black velvet - long version By: Jenneke on Tue, 09 March 2021 18:25
		Re: Green black velvet - long version By: Ephemerald on Tue, 09 March 2021 19:21
		Re: Green black velvet - long version By: Jenneke on Tue, 09 March 2021 20:21
		Re: Green black velvet - long version By: Ephemerald on Tue, 09 March 2021 20:38
		Re: Green black velvet - long version By: thesnark17 on Tue, 09 March 2021 23:40
		Re: Green black velvet - long version By: Jenneke on Wed, 10 March 2021 11:55
		Re: Green black velvet - long version By: Jenneke on Thu, 11 March 2021 19:26
		Re: Green black velvet - long version By: afire on Thu, 11 March 2021 21:50

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