| |
 |
|
Class Information
Number: 33/409
Name: Geometrical instruments > Straightedge type > Wall guide and plumb (e.g., building construction) > Building is the vertical support > Connected to brick > By line tension only
Description: Subject matter wherein the wall guide is a line which is stretched by a spring-type mechanism from one end of a brick wall portion to another.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7409771 |
Self supporting string line reel-line block tool |
Aug. 12, 2008 |
| 6412184 |
Masonry line block and corner pole |
Jul. 2, 2002 |
| 6036133 |
Recoiling string line apparatus |
Mar. 14, 2000 |
| 5711081 |
Device and method for construction |
Jan. 27, 1998 |
| 5479713 |
Line block masonry alignment system for use in conjunction with door bucks and a plumb line |
Jan. 2, 1996 |
| 5125162 |
Brick alignment clips |
Jun. 30, 1992 |
| 5009015 |
Brick line tool |
Apr. 23, 1991 |
| 5003701 |
Masonry clip |
Apr. 2, 1991 |
| 4995152 |
Chalking line retainer |
Feb. 26, 1991 |
| 4329786 |
Bricklayer's plumb guide |
May. 18, 1982 |
| 4144649 |
Brick alignment pole |
Mar. 20, 1979 |
| 4031627 |
Line holders for brick and concrete block laying |
Jun. 28, 1977 |
|
|
|
