Resources Contact Us Home
Browse by Category: Main > Tools & Hardware
Class Information
Number: 156/46
Name: Adhesive bonding and miscellaneous chemical manufacture > Methods > Plaster board making > With subsequent treatment of plaster board > Perforating
Description: Processes in which the modification is the formation of an aperture.

Patents under this class:

Patent Number Title Of Patent Date Issued
8147629 Ceiling tile construction Apr. 3, 2012
5151130 Amine-based consistency reducers for gypsum stucco slurries Sep. 29, 1992
4614553 Method of manufacturing acoustic panels for controlling reverberation of sound in enclosed environments Sep. 30, 1986
4495235 Process for the preparation of fiber-reinforced flat bodies containing a hardenable binder Jan. 22, 1985
3954543 Label applicator May. 4, 1976

  Recently Added Patents
Apparatus for controllable delay cell and associated methods
Image forming apparatus and control method therefor
Interactive program guide systems and processes
Biomarker for Barrett's Oesophagus
Method of sheet alignment and method of post-processing comprising the same and method of image formation
System for non-destructive image processing
Carbonyl-ene functionalized polyolefins
  Randomly Featured Patents
Method of and machine for pattern writing by an electron beam
Switched power converter utilizing a piezoelectric transformer
Electric rice cooker
Active air removal from an extracorporeal blood circuit
Drain-clearing device
Microscope tube having relatively swinging sections
Method and apparatus for degassing fluid in enclosed containers
Eight cylinder internal combustion engine with variable displacement
Interrogation gate for an electronic article surveillance system
Rail vehicle brake system