|
US2560619A
|
|
Grouting process and apparatus
|
|
US2655004A
|
|
Composition for and method of solidifying porous masses and structures
|
|
US2325087A
|
|
Method of and apparatus for treating surfaces
|
|
US2434302A
|
|
Method of solidifying porous structures
|
|
US2434301A
|
|
Process of increasing the strength of porous structures
|
|
US2254252A
|
|
Process of densifying and solidifying porous masses
|
|
US2313110A
|
|
Process for filling cavities
|
|
US2313109A
|
|
Process of treating porous masses
|
|
US2313108A
|
|
Method for treating surfaces
|
|
US2313107A
|
|
Composition for densifying porous masses and structures
|
|
US2229264A
|
|
Process of densifying concrete structures
|
|
US2128480A
|
|
Reinforcing concrete patch
|
|
US1926415A
|
|
Apparatus for treating masonry structures
|
|
US1953452A
|
|
Process of repairing masonry structures
|
|
US1883196A
|
|
Process of repairing masonry structures
|
|
CA520720A
|
|
Method of solidifying porous masses and structures
|
|
CA412214A
|
|
Porous structure strength increasing process
|
|
CA408073A
|
|
Concrete surface treating apparatus
|
|
CA393010A
|
|
Concrete densifying process
|
|
CA373882A
|
|
Concrete patch
|
