2 trademarks were found for owners matching the name Siegmund Grondman.
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1 TM: 1209507
Desc: FHONE

Owner: Siegmund Grondman
Class: 9
Status: Registered: Registered/protected
2 TM: 846707
Desc: GRONDMAN
Owner: Siegmund Grondman
Class: 9, 42
Status: Lapsed: Registration fee not paid on time