Pencil sharpener

Pencil sharpener

Pencil sharpener for non-circular section pencils

Percussion head tool

Personnel transfer gangway

Pet ramp for trucks

Pickaback bridge spans for use with an inversion-launch bridgela

Pier system and method of construction

Pile supported bridge assembly

Pin connection system for elevated causeways

Pivotable and extensible tension post for a cable bridge structu

Pivotal and vertically translatable dock leveler lip

Plane

Planing tool

Platform edge warning ramp

Plywood driving tool

Pneumatic construction or bridging element

Pneumatic floor supports for portable platforms

Pocket ramp

Pontoon bridge with automatic height adjusting and locking syste