|
US4308692A
|
|
Door frame kit
|
|
US3095696A
|
|
Combustion-engine exhaust systems
|
|
US3082302A
|
|
Electrical outlet
|
|
US3079475A
|
|
Electrical plug
|
|
US2763911A
|
|
Composite structures such as shuttering for concrete or as parts of buildings composing a number of panel elements
|
|
US2780935A
|
|
Method of making a floor slab
|
|
CA544163A
|
|
Building methods
|
|
CA560247A
|
|
Composite panel structures for use in building
|
|
CA551157A
|
|
Ties for shuttering
|
|
CA679174A
|
|
Combustion engine exhaust systems
|
|
CA551838A
|
|
Installation of skirting boards, picture rails and the like
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