Adjustable manhole cover support with shield

Adjustable manhole frame and method of construction and...

Adjustable manhole or utility access cover

Adjustable manhole top

Adjustable protecting sleeve and fastener therefor

Adjustable removable cunette

Adjustable sewer inlet section

Adjustable sidecutter for excavator buckets and the like

Adjustable stabilizer support for vehicles

Adjustable staircase

Adjustable tent stake

Adjustable trencher tooth holder

Adjustable utility access device

Adjustable weir for hydroelectric dam installations

Adjustable yoke for suspending concrete wall and slab...

Adjustable/compliant moldboard insert

Adjusting mechanism for the main plow of a grader

Adjustment mechanism for a scraper elevator

Adjustment mechanism for dozer blade

Adjustment riser