De Novo s.r.o.
De Novo s.r.o. Patent applications | ||
Patent application number | Title | Published |
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20100272495 | CHALK HOLDER WITH A RESILIENT LATCH ELEMENT - A chalk holder comprising a shaft and a slide formed by a chalk receiving part with a protruding spring-mounted upper arm extending through a longitudinal guide slot and provided with a button; the receiving part ( | 10-28-2010 |