Jan 8, 2014 · The DRP is for Deutsches Reichspatent. These were so to speak "proper" patents, and were first introduced in 1877. Before then, various of the states (kingdoms, etc.) issued patents. DRGM is for Deutsches Reichs-Gebrauchsmuster. These so-called in patspeak "utility-model" patents were first introduced in 1891.

Oct 12, 2005 · How can I track down the meaning of a clock movement marking "DRP 367338" on a German mantle clock? This is a Westminster chime movement. I know DRP is a pre-WWII German patent numbering system so clock must predate 1945. ***NEVER MIND*** I found it at the German patent office website.

Mar 9, 2006 · I am looking for information on a Night Light clock stamped on the base DRP, Made in Germany. The clock has a molded metal base with a round two hemisphere milk glass top. The upper hemisphere rotates and shows the minute increments while the lower has the hour. The clock has a mechanical key wind movement in the base.

Jan 18, 2017 · The mechanism is marked by DRP 55006, i have found on the forum that the clock was originally made around 1890. Is there any way to find specific details about the clock from the serial number on it? Few of the cogwheels are broken, a bit difficult to see it on the pictures attached, is there any store that i can purchase this specific wheels ...

Jan 26, 2012 · Hello, I recently inherited my grandmother's grandfather clock. It is around 7 feet tall and plays Westminster chimes. The markings on the chimes are Gloria DRP and there is a J with a star around it on the bottom of the chimes. I just found out that DRP can mean Deutsches Reichs Patent and that...

Apr 21, 2016 · Hello everybody, I have one question. In which cases is a German clock DRP marked? None of my clocks are DRP marked (Junghans, Schnekenburger, SWA, Carl Meisenzahl) Only the pendulum of my GB is DRP marked but not clockwork. Thanks for your statement. kind regards from Germany korn2016

Jan 10, 2021 · The DRP numbers (German patents) can be of assistance in determining a "no earlier" than date. The first DRP - 55006 - is the Kielmann patent and is used quite a bit by Mauthe. It was granted to Kielmann in 1890, but your movement is not that old. The other DRP - 6xxxx - is difficult to read.

Feb 13, 2021 · The DRP (patent) is a much better indicator of a "not earlier than" date then even a trademark. The OP's patent date indicates that 1901 is the earliest the clock could have been made. Finally, trademark usage can overlap, so whereas your statement is logical, this is not always correct. Regards.

Jan 11, 2013 · I am guessing it is the date in which it was made in 1935. The Letter I I have no idea what it is for. There is a serial number or patent number on the clockworks it is 72277. There are also the Initials D.R.P. in a separate location.I know the DRP initials mean Deutsches Reichs Patent. So I am geussing it is a German Patent mark.

Jan 6, 2013 · Germany, North Rhine-Westphalia Country Region. Jan 6, 2013 #2 Re: Kienzel U.R.PATENT 147023 Welcome to ...