Drilling device for the dry drilling of blind holes and through holes
DD155286A3
Method for improving the extraction capacity of microbial biomasses
DD152691A3
Method for implementing microbiological processes
DD151118A1
Ueberzugsstoff
DD149081A1
Process for obtaining single-cell protein
DD149080A1
Process for obtaining single-cell protein
DE2952295A1
Rock drilling machine cutter crown - has cutting plates whose edges slope at acute angle to head face for milling action
DE2949556A1
Rock drill with hollow bit - has air joint for drill dust fitting over mounting portion on bit
DD149842A3
Process for obtaining protein-containing feeding agent from belief slot
DD132352A1
Process for obtaining microbial protein
DD129270A3
Process for obtaining protein from microorganisms
DD155788A3
Method for the removal of hydrocarbons and / or biogenical ingredients from a suspension of micro-organisms carried out on hydrocarbons and / or other carbon sources at the same time cell crew
