Vintage Gruen: 1930's » The Quadron 3

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Wed, 24 July 2013 21:19

Jenneke
Messages: 1861
Registered: May 2013
Location: Netherlands

Gruen Authority

Quote:

Gruen had a patent on this technology (US Letters Patent 1,573,134).

There was a legal case for this patent (1930): Bulova versus Gruen

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

		The Quadron 3 By: Thojil on Mon, 22 July 2013 20:54
		Re: The Quadron 18? By: JackW on Tue, 23 July 2013 02:05
		Re: The Quadron 18? By: afire on Tue, 23 July 2013 04:05
		Re: The Quadron 18? By: Jenneke on Tue, 23 July 2013 16:57
		Re: The Quadron 18? By: mikey on Tue, 23 July 2013 19:22
		Re: The Quadron 18? By: Thojil on Tue, 23 July 2013 20:07
		Re: The Quadron 18 By: JackW on Tue, 23 July 2013 23:07
		Re: The Quadron 18 By: Jenneke on Wed, 24 July 2013 21:19
		Re: The Quadron 18 By: Gary on Thu, 25 July 2013 01:59

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