11 Design Patents
#451 in San Francisco, CA
#2,572 in California
#11,758 in US
#20,868 in the World
Forward Citations = 209
Company Filing History:
Siemens Rolm Communications Inc.


4. 1 out of 237

5. 1 out of 2
Siemens Business Communications Systems
where one patent can have more than one assignee
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