1946914

Information

• Patent Grant
• 1946914

• References
• Source

• Patent Number

  1,946,914

• Date Filed

  Not available

• Date Issued

  Tuesday, February 13, 1934
  91 years ago

• CPC

  • E04B1/82 - specifically with respect to sound only
  • E04B2001/8245 - Machines for manufacturing, shaping, piercing or filling sound insulating elements
  • E04B2001/8461 - layered
  • Y10S264/57 - Processes of forming layered products
  • Y10S264/80 - Processes of waterproofing

• US Classifications

  • 181 - Acoustics
  • 052 - Static structures
  • 264 - Plastic and nonmetallic article shaping or treating: processes