PLASTER RINGS PDF

102000015933 Rim-like Human genes 0.000 claims abstract description 17.239000011505 plaster Substances 0.000 claims abstract description 50.Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.) Filing date Publication date Application filed by CHAMOIS ELECTRONIC Mfg CO Inc filed Critical CHAMOIS ELECTRONIC Mfg CO Inc Priority to US5259270A priority Critical Application granted granted Critical Publication of US3666040A publication Critical patent/US3666040A/en Anticipated expiration legal-status Critical Status Expired - Lifetime legal-status Critical Current Links Original Assignee CHAMOIS ELECTRONIC Mfg CO Inc Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.) Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Expired - Lifetime Application number US52592A Inventor Heinrich J Junk Current Assignee (The listed assignees may be inaccurate.

PLASTER RINGS PDF

Google Patents Ceiling mounting ring for speaker conesĭownload PDF Info Publication number US3666040A US3666040A US52592A US3666040DA US3666040A US 3666040 A US3666040 A US 3666040A US 52592 A US52592 A US 52592A US 3666040D A US3666040D A US 3666040DA US 3666040 A US3666040 A US 3666040A Authority US United States Prior art keywords ring ceiling speaker closing plate plaster Prior art date Legal status (The legal status is an assumption and is not a legal conclusion. Google Patents US3666040A - Ceiling mounting ring for speaker cones

US3666040A - Ceiling mounting ring for speaker cones

Plaster rings