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Class Information
Number: 249/101
Name: Static molds > Forming product having joint or coupling > Tongue and groove on same product
Description: Apparatus having means for forming a tongue on one edge of the product and a groove on the other edge of the product.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7048250 |
Method for producing purpose-made blocks, a device therefor and a purpose-made block |
May. 23, 2006 |
| 6854702 |
Form for manufacturing concrete blocks for freestanding walls |
Feb. 15, 2005 |
| 6736365 |
Valve for use in producing cast concrete articles |
May. 18, 2004 |
| 6557818 |
Form for manufacturing concrete retaining wall blocks |
May. 6, 2003 |
| 6400429 |
Method for producing a liquid crystal display device |
Jun. 4, 2002 |
| 5358214 |
Mold for concrete modular precastings |
Oct. 25, 1994 |
| 5332191 |
Apparatus for making concrete slabs |
Jul. 26, 1994 |
| 5259586 |
Mold insert for forming precast concrete modules |
Nov. 9, 1993 |
| 5205943 |
Apparatus for manufacture of precast concrete building units |
Apr. 27, 1993 |
| 5123784 |
Method of sealing construction joint in top-down construction method |
Jun. 23, 1992 |
| 4871505 |
Mold and process for manufacturing helical shaped items |
Oct. 3, 1989 |
| 4790508 |
Concrete casting form including retractable core |
Dec. 13, 1988 |
| 4693861 |
Mold and process for manufacturing helical shaped items |
Sep. 15, 1987 |
| 4191521 |
Battery moulding of panels |
Mar. 4, 1980 |
| 3975131 |
Expansible mold for the manufacture of plaster pieces |
Aug. 17, 1976 |
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