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Class Information
Number: 29/25
Name: Metal working > Umbrella-frame making
Description: Process or apparatus for forming or assembling an umbrella frame including forging an umbrella rib, shaping, or assembling a component of an umbrella frame with another component.

Patents under this class:

Patent Number Title Of Patent Date Issued
8227345 High capacity anode preparation apparatus Jul. 24, 2012
8015682 Method and device for forcible entry Sep. 13, 2011
7707700 Rapid access tool May. 4, 2010
7615869 Memory module with stacked semiconductor devices Nov. 10, 2009
7353583 Method of forming an umbrella canopy Apr. 8, 2008
6767789 Method for interconnection between transfer devices and storage capacitors in memory cells and device formed thereby Jul. 27, 2004
6703257 Piezoelectric/electrostrictive film type elements and process for producing the same Mar. 9, 2004
6571126 Method of constructing a capacitor stack for a flat capacitor May. 27, 2003
5968259 High-purity quartz glass and method for the preparation thereof Oct. 19, 1999
5722135 Umbrella rib fabrication method Mar. 3, 1998
5195017 Method for forming a polysilicon to polysilicon capacitor and apparatus formed therefrom Mar. 16, 1993
4916786 Method of assembling an armature of an umbrella Apr. 17, 1990

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