Title:
SOUND INSULATING BARRIER AND METHOD OF MAKING THE SAME
United States Patent 3429728
Inventors:
Goldstone, Edward G.
Neumann, Hans K.
Publication Date:
02/25/1969
Other Classes:
427/420, 428/175, 427/345, 428/392, 428/489, 427/398.300, 442/120, 428/396
International Classes:
D21J1/00; B44D1/40; B44D1/44
US Patent References:
| 2858231 | Sound-deadening composition of matter | | | |
| 3067060 | Method and apparatus for curtain coating | | | |